99969648 has 40 divisors (see below), whose sum is σ = 258614400. Its totient is φ = 33276864.

The previous prime is 99969647. The next prime is 99969679. The reversal of 99969648 is 84696999.

It is a junction number, because it is equal to n+sod(n) for n = 99969591 and 99969600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99969647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62523 + ... + 64101.

It is an arithmetic number, because the mean of its divisors is an integer number (6465360).

Almost surely, 2^99969648 is an apocalyptic number.

It is an amenable number.

99969648 is an abundant number, since it is smaller than the sum of its proper divisors (158644752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99969648 is a wasteful number, since it uses less digits than its factorization.

99969648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909 (or 2903 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 60.

The square root of 99969648 is about 9998.4822848270. The cubic root of 99969648 is about 464.1119181079. Note that the first 3 decimals are identical.

The spelling of 99969648 in words is "ninety-nine million, nine hundred sixty-nine thousand, six hundred forty-eight".